| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Xenorthis
Taxonomy
Xenorthis is a genus. It is not extant.
It was assigned to Billingsellidae by Williams et al. (2000); and to Orthida by Sepkoski (2002).
It was assigned to Billingsellidae by Williams et al. (2000); and to Orthida by Sepkoski (2002).
Synonymy list
| Year | Name and author |
|---|---|
| 2000 | Xenorthis Williams et al. p. 692 |
| 2002 | Xenorthis Sepkoski |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
G. †Xenorthis
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, c = class, p = phylum, uc = unranked clade | |||||
| References: Aberhan et al. 2004, Bambach et al. 2007, Nesnidal et al. 2013 | |||||
Age range: Trempealeauan or 490.20000 to 486.85000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Trempealeauan | USA (Nevada) | X. n. sp. (233789) |